Which 2 continents could fit into each other?
Antarctica and Asia
Africa and South America
Europe and Asia
Why do we use the alignment of magnetic rocks to know how old a plate is?
The older rock that's aligned with our current magnetic field
The newer rock that's aligned with our ancient magnetic field
The newer rock that's aligned with our current magnetic field
If you look at magnetite which is close to the mid-ocean ridge. What do you expect about its alignment?
They're aligned in a way that you would expect with the current magnetic field
They're aligned in a way that you would not expect with the current magnetic field
They're aligned in a way that you would expect with the ancient magnetic field
And what about if magnetite is further?
You have circles of other magnetic rock that is going in the opposite direction
You have stripes of other magmatic rock that is going in the same direction
You have stripes of other magnetic rock that is going in the opposite direction
Why this magnetic stripes pattern is an evidence of plate movement?
Wegener discovered them
The rift has had to move apart
Magnetic stripes change throughout time
In present times, What system do we use to measure the plate movement?,
Lageos
Computer monitoring
GPS satellites
Could you compare this speed to any biological process?
The speed at which hair grows
The speed at which fingernails grow
The speed at which fbones grow